The 'sound' created from a stars brightness can be used to determine it's size. A paper published in Nature shows how variations in these sounds are caused by the different ways in which hot gas wells up to the surface and cool gasses sink back down.

The way a star flickers can shed light on the strength of gravity's pull on its surface, researchers say. And discovering more about a star's pull can yield key insights on its evolutionary state and on any planets that might orbit it, scientists added.

Astrophotographer Meldeine Sipes shot these stunning night sky photos during her family vacation to Sequoia National Park in California. "For the first time, we saw the night sky as nature intended," Sipes said.

Facing due south this week about 90 minutes after sunset, we can see the star figure that is dedicated to the famed physician Aesculapius. It is the large constellation of Ophiuchus (The Serpent Holder).

Gas Clouds' NGC 2014 (pink) and NGC 2020 (blue) reside next to each other, but are quite different. Their chemical make up (oxygen & hydrogen) and star temperatures create the glow. Located in the Large Magellanic Cloud, 163,000 light-years away.

Astronomers using NASA's Spitzer Space Telescope have detected a system of young, blinking stars surrounded by a dusty "hula-hoop" of stellar leftovers that could one day form planets like the fictional "Tatooine" in Star Wars.

Galaxies no longer producing stars (quenched galaxies) have long puzzled astronomers with how they grow. Now Hubble Space Telescope and European Southern Observatory's VISTA have shown that larger galaxies stopped producing stars later in life.

New observations from NASA's Hubble Space Telescope have helped astronomers solve a longstanding mystery about galaxy evolution. It turns out that ancient galaxies stopped forming stars at a smaller size than their younger cousins did.

A newly discovered way to determine the spin of supermassive black holes could help shed light on the evolution of these bizarre objects and the galaxies they anchor. Astronomers used a European spacecraft to estimate one black hole's rotation rate.

Would you like fries with that? An avid astrophotographer ordered up one mouth-watering image of the Hamburger Galaxy in this latest night sky photo. Alessandro Falesiedi captured this image from Italy.

The sun-approaching Comet ISON floats against a seemingly infinite backdrop of numerous galaxies and a handful of foreground stars in this amazing space wallpaper taken in April 2013 by NASA's Hubble Space Telescope.

Veteran night sky photographer Jeff Berkes captured this spectacular view of the northern lights with lightning, a Bootid meteor and the Milky Way Galaxy. See how Berkes made the stunning image and his thoughts on the night sky vista.

This striking cosmic whirl is the center of galaxy NGC 524, as seen in this fascinating space wallpaper. This galaxy is located in the constellation of Pisces, some 90 million light-years from Earth. NGC 524 is a lenticular galaxy.

The glowing arc of the Milky Way points to the great ruins of the Incan Empire, Machu Picchu, in this vivid night sky image. Thomas O'Brien took this photo in early July 2013 from the summit of Putucusi Mountain in Peru.

In this space wallpaper—among a crowd of face- and edge-on spiral, elliptical, and irregular galaxies in the constellation of Virgo—lies NGC 4866, which is a lenticular galaxy situated about 80 million light-years from Earth.

Observations of the dark cloud SDC 335.579-0.292 using the Atacama Large Millimeter/submillimeter array (ALMA) have given astronomers the best view yet of a monster star in the process of forming, as seen in this stunning space wallpaper.

Observations of planetary nebula NGC 2392 by the Chandra and Hubble Space Telescopes reveals the complexities of the death of a star like our own. The Sun still has about 5 billion years before it suffers a similar fate.

The Andromeda Galaxy, the closest galaxy to our own Milky Way, gets the star treatment in this dazzling photo by amateur astronomer and photographer Lorenzo Comolli. See how he snapped the amazing galaxy photo here.